id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
hjic-676	, 	Downloadable Full Issue	2015	50	.pdf	application/pdf	29384	1608	58	J. Coal Geol., 2002, 50(1), 135–168 DOI: 10.1016/S0166-5162(02)00117-9 J. Coal Geol., 2002, 50, 289–412 DOI: 10.1016/S0166-5162(02)00123-4 [	cache/hjic-676.pdf	txt/hjic-676.txt